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Keyestudio ESP-01S Wifi Module Adapter Board for Arduino ESP8266 WIFI

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This is an expansion board for the ESP-01S WiFi module, compatible with the breadboard.

You can directly plug it into the breadboard, and plug the ESP-01S module according to the arrow silk-screen on the board.

The expansion board pulls the ESP-01S module pins out onto the breadboard, allowing easy experiments through the breadboard plug.

After power-on, the module is in BOOT flash mode, and the AT command test can be directly performed.


  • Working voltage: DC 5V
  • Working current: minimum 500mA
  • Communication voltage: 3.3V
  • Environmental attributes: ROHS
  • Size: 18.8mm*16.8mm*19.8mm
  • Weight: 2.3g
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